1. A tabulation or grouping of data into appropriate categories showing the number of observations in each group or category.
a. Tabular form
b. Frequency distribution
C. Histogram
d. Frequency Polygon

2. These are the midpoints of the lower and upper class limits. They can be found by adding the lower and upper limits and then dividing the answer by 2.
a. Class size
b. Class boundaries
C. Class Marks
d. Class interval/limits

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